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Rab
Neutrino Endurance 400 Sleeping Bag: 25F Down

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Where lightweight and performance collide.

Weighing less than two pounds, the Rab Neutrino Endurance 400 25-Degree Down Sleeping Bag is perfect for three-season alpinists, mountaineers, and backpackers looking to shave weight and sleep like a warm and cozy log. Rab teamed up with Nikwax to develop a hydrophobic treatment to protect the 800-fill goose down insulation from tent condensation or exposure to rain. Pertex Endurance fabric provides the shell, inner hood, and draft collar with windproof and highly water-resistant protection, while the Pertex Quantum lining resists abrasion and keeps the down as lofty as can be for a long time. Better yet, both fabrics are treated with water-repellent DWR treatments to provide an extra barrier between your insulation and soggy mountain weather.


The Neutrino Endurance has a tapered mummy shape in order to cut back on weight and size for space-conscious adventurers, but it is also available in an extra-long cut if you're on the ganglier side.  It features an adjustable hood and draft collar and comes with the zipper on either the left or right side for your convenience. Rab also included a zippered internal stash pocket for a small midnight snack, a Polygiene Stay Fresh antimicrobial treatment, and a dry bag compression sack to keep the bag warm and lofty when you're caught in a rainstorm on the way to camp.


Details

  • Pertex Endurance face fabric and Pertex Quantum lining
  • External and internal DWR treatments
  • Polygiene Stay Fresh antimicrobial treatment
  • 800-fill hydrophobic goose down
  • Neck baffles
  • Angled footbox
  • Internal collar and hood drawcords
  • Internal stash pocket
  • Waterproof compression sack and cotton storage sack
  • Item #RAB00BI
Material
[face fabric] Pertex Endurance (30D nylon), DWR treatment, [lining] Pertex Quantum (20D nylon), DWR treatment, [hood, collar] Pertex Endurance (30D nylon)
Insulation
800-fill down
Shape
mummy
Zipper
3/4-length
Max User Height
[regular] 6 ft 3 in, [extra long] 6 ft 6 in
Pockets
1 internal stash
Fill Weight
[regular] 14.1 oz, [extra long] 15.3 oz
Degree
25 F
European Norm Comfort Rating
37 F
European Norm Lower Limit Rating
27 F
Storage Sack
yes, cotton
Stuff Sack
yes, waterproof compression
Claimed Weight
[regular] 1 lb 15.4 oz, [extra long] 2 lb 1.3 oz
Recommended Use
backpacking, camping
Manufacturer Warranty
lifetime